13365040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 34122816

約数和(自身を除く): 20757776

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 71, 80, 104, 130, 142, 181, 208, 260, 284, 355, 362, 520, 568, 710, 724, 905, 923, 1040, 1136, 1420, 1448, 1810, 1846, 2353, 2840, 2896, 3620, 3692, 4615, 4706, 5680, 7240, 7384, 9230, 9412, 11765, 12851, 14480, 14768, 18460, 18824, 23530, 25702, 36920, 37648, 47060, 51404, 64255, 73840, 94120, 102808, 128510, 167063, 188240, 205616, 257020, 334126, 514040, 668252, 835315, 1028080, 1336504, 1670630, 2673008, 3341260, 6682520, 13365040]

約数ペア:

[(1, 13365040), (2, 6682520), (4, 3341260), (5, 2673008), (8, 1670630), (10, 1336504), (13, 1028080), (16, 835315), (20, 668252), (26, 514040), (40, 334126), (52, 257020), (65, 205616), (71, 188240), (80, 167063), (104, 128510), (130, 102808), (142, 94120), (181, 73840), (208, 64255), (260, 51404), (284, 47060), (355, 37648), (362, 36920), (520, 25702), (568, 23530), (710, 18824), (724, 18460), (905, 14768), (923, 14480), (1040, 12851), (1136, 11765), (1420, 9412), (1448, 9230), (1810, 7384), (1846, 7240), (2353, 5680), (2840, 4706), (2896, 4615), (3620, 3692)]